Zoekresultaten - 15 results

Development of novel analytical methods to trace small micro- and nanoplastics in food matrices

European project [3]. For this purpose, in this work, asymmetrical flow field-flow fractionation (AF4) has been coupled with multi-angle dynamic light scattering (MADLS) and Raman spectroscopy. In ...

A systematic evaluation of Flow Field Flow Fractionation and single-particle ICP-MS to obtain the size distribution of organo-mineral iron oxyhydroxide colloids.

and to compare these with standard approaches, i.e. dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), microscopy (TEM), membrane filtration, centrifugation and dialysis. Seven ...

Zona pellucida gene mRNA expression in human oocytes is related to oocyte maturity, zona inner layer retardance and fertilization competence.

in the ZP, in the current study, the polarized light microscopy (PLM) approach was combined with analysis of the expression of the genes encoding ZP1, 2, 3 and 4, both in the oocytes and in the ...

Challenges in the size analysis of a silica nanoparticle mixture as candidate certified reference material.

equivalent diameters that are specific for dynamic light scattering (DLS), centrifugal liquid sedimentation (CLS), scanning and transmission electron microscopy (SEM and TEM), atomic force microscopy ...

The epidemiology of subclinical malaria infections in South-East Asia: findings from cross-sectional surveys in Thailand-Myanmar border areas, Cambodia, and Vietnam.

identification. A history of fever, male sex, and age of 15 years or older were independently associated with parasitaemia in a multivariate regression model stratified by site. CONCLUSION: Light microscopy and RDT ...

Genotoxicity evaluation of nanosized titanium dioxide, synthetic amorphous silica and multi-walled carbon nanotubes in human lymphocytes.

Mast; Jensen, Keld A; Norppa, Hannu; Nesslany, Fabrice; Silva, Maria João Source: Toxicol In Vitro, Volume 28, Issue 1, p.60-9 (2014) Keywords: Adult Female Humans In Vitro Techniques Light Lymphocytes ...

Interaction of Aspergillus fumigatus conidia with Acanthamoeba castellanii parallels macrophage-fungus interactions.

observed with light and transmission electron microscopy. These processes resulted in structural changes in A. castellanii, leading to amoebal permeabilization without cell lysis. In conclusion, A. ...

Occurrence and diversity of free-living protozoa on butterhead lettuce.

Identification of FLP was performed by light microscopy and sequencing of denaturing gradient gel electrophoresis (DGGE)-separated 18S rRNA gene fragments. Bodo saltans, Spumella (-like) spp. and Cercozoa were the ...

Microscopic and molecular studies of the diversity of free-living protozoa in meat-cutting plants.

reaction RNA, Ribosomal, 18S Sequence Analysis, DNA Abstract: The diversity of free-living protozoa in five meat-cutting plants was determined. Light microscopy after enrichment culturing was combined with ...

Felid herpesvirus 1 glycoprotein G is a structural protein that mediates the binding of chemokines on the viral envelope.

Vanderplasschen, Alain Source: Microbes Infect, Volume 8, Issue 11, p.2657-67 (2006) Keywords: Animals Cats Cell Line Chemokines Chromosomes, Artificial, Bacterial Genome, Viral Glycoproteins Microscopy ...

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